@TheGoofy calls it Yet ANOTHER Machine Vise, but it's far more interesting than that. This is a useful design and a great project. Be sure to watch the accompanying video. You just might learn something.
And the award for Technical Achievement In Lion Printing goes to @_primoz_'s Hairy Lion, which adds a new dimension to @geoffro's Lion HD, which was a version of @3DWP's Lion. Print this magnificent creature today and test your post processing skills. Don't forget to post a make!